plastic是可数名词吗

plastic本身是个不可数名词,但是加上s后表示各种各样的塑料材质.

例句Modern plastics can stand very high and very low temperatures.

新型塑料能承受很高和很低的温度。

If you build more plastics into cars, the car lasts longer.

如果汽车采用更多塑料元件，寿命会更长一些。

The superglue may not create a bond with some plastics

强力胶水可能无法粘住某些塑料。

Plastics has been used widely.

塑料已被广泛利用。

Most plastics do not readily conduct heat or electricity.

大多数塑料不易传热或导电。

Plastics will soften when exposed to heat.

塑料适当加热就可以软化。